<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>文件上传</title>
</head>
<body>
<form action="http://localhost:8080/stock/upload" method="post" enctype="multipart/form-data">
    <input type="file" name="file"/>
    <button type="submit">提交</button>
</form>
</body>
</html>